H peiefts



(No Model.)

G. M. BRANDT.

ADJUSTABLE SHAFT HANGER. No. 414,489. Patented Nov. 5, 1889.

MFA/5555 K i 5 Win/7 171 1 M A j kww 2 UNITED STATES PATENT Fries.

CHARLES M. BRANDT, OF TOLEDO, OHIO, ASSIGNOR TO HIMSELF, HARRY R. BACON, HORATIO A. BLACK, AND FRANK M. LONG, ALL OF SAME PLACE.

ADJUSTABLE SHAFT-HANG ER.

SPECIFICATION forming part of Letters Patent No. 414,489, dated November 5, 1889.

Application filed January 29, 1889. Serial No. 297,991. (No model.)

To whom it may concern:

Be it known that 1, CHARLES M. BRANDT, a citizen of the United States, residing at 'loledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Adjustable Shaft-Hangers; and I do hereby declare that the followingis a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thercon,wl1ich form part of this specification.

My invention relates to adjustable shafthangers, and has for its object to provide a shaft-hanger with a positive and easily-manipulated adjustment with which to line a main shaft when out of line. A further object is economy of construction and to provide a hanger (either single or duplex) that can be adjusted without the aid of skilled labor.

The invention consists in the parts and combination of parts hereinafter described, and pointed outin the claims.

In illustrating my invention I have shown a single hanger adjustable by means of a rackbar and pinion, and also a duplex hanger actuated by the same adjustment, the ad vantage of the same being a quick and positive means of lining a shaft.

In the drawings, Figure 1 is a side elevation of a standard with a portion of the same broken away to disclose the rack-bar andpinion. Fig. 2 is alike view showing the squared axis by which the pinion is revolved, and also a pa-wl-and-ratchet mechanism by which the suspension-bar is held to any desired adjustment. Fig. 3 is a side elevation of a duplex hanger, a portion of the hanger being broken away to disclose the two rack-bars and the intermediate pinion for actuating the same. Figs. 4 and 5 are views in cross'section on the lines a; a; andy y, respectively, of Figs. 2 and 3, the two last-named figures being intended to show the dovetailed arrangement of the rack-bars within the dovetailed grooves of the hanger.

.cesses E of hangers F, which are provided with any preferred means of attachment to joists G. Within the hangers F are placed pinions H, mounted upon shafts I, said shafts beingj ournaled in the hangers, and of a length to project through the same upon the front side a sufficient distance to receive a ratchetwheel K and allow a wrench or crank to be secured upon the free end to turn the same, and with the shaft. the pinion by which to raise or lower the suspension-bar.

L designates a pawl engaging with ratchet- Wheel K to hold the pinion in fixed position whenever the suspension-bar is properly adj usted.

From the above description the operation will be easily understood. The shaftbeing secured in place within bearings 15, the suspension-bars O are placed within the dovetailed recesses E of the hangers, the rack-bar thereof engaging with the pinions within the hangers. Shafts I are now turned by means of a wrench or crank placed upon the projecting end thereof, and the pinion of each hanger is turned to raise or lower the suspension-bar, as may be requisite to line the shaft.

In Fig. 3is shown a duplex hanger, in which each rack-bar works in dovetailed recesses in hanger F, with the shaft A running longitudinallyof the suspension-bars, the bearings B for the shaft being pivotally secured in the same at some distance from the hanger, the suspension-bars being at right angles to the rack-bars and extending parallel with the shaft at any desired distance, and is then bent at right angles to the toothed portion D and bifurcated to receive bearings B. Inthis construction the operation is essentially the same. The revolution of the pinion H, however, tends to raise one of the suspension bars and depress the opposite one to the same extent, this construction being of practical value where great tension is required upon the belt and Where the pulley is placed upon the shaft intermediate two suspension-bars. The shaft can thus be readily adjusted by raising one of the suspension-bars and depressing the opposite one.

WVhat I claim is- 1. A shaft-hanger comprising a hanger formed with a recess to receive a suspensionbar, and a pinion journaled in the hanger, in combination with a suspension-bar formed with a toothed portion adapted to be moved within the recess when the pinion is revolved,

as and for the purpose set forth.

2. In a shaft-hanger, ahanger, a pinion journaled therein upon an axis having a squared outer end, a ratchet-wheel upon the axis, and a pawl secured to the hanger and engaging with the ratchet-wheel, in combination with one or more toothed suspension-bars movably secured to the hanger and held in engagement with the pinion, as and for the purpose set forth. g

In testimony that I claim the foregoing as my own I hereby aflix my signature in presenoe of two witnesses.

CHARLES M. BRANDT.

Witnesses:

WILLIAM WEBSTER,

CARROLL J. WEBSTER. 

